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某型摩托车车架服役中断裂失效分析
引用本文:陈林,黄其慰.某型摩托车车架服役中断裂失效分析[J].装备环境工程,1995(5).
作者姓名:陈林  黄其慰
作者单位:中国兵器工业第五九研究所 (陈林),中国兵器工业第五九研究所(黄其慰)
摘    要:通过对服役中断裂失效的摩托车车架进行综合分析,表明该车架的断裂主要是由于车架材料的组织中,存在有较严重的沿晶分布游离渗碳体。这种游离渗碳体的存在,导致材料在冷加工过程中于内部形成微裂纹,并在外力的作用下,微裂纹最终扩展并导致疲劳断裂。

关 键 词:摩托车  疲劳断裂  游离渗碳体

Fracture Failture Analysis of a Motorbike Frame in Service
China Ordnance Industries No: Institute Chen Lin Huang Qiwei.Fracture Failture Analysis of a Motorbike Frame in Service[J].Equipment Environmental Engineering,1995(5).
Authors:China Ordnance Industries No: Institute Chen Lin Huang Qiwei
Institution:China Ordnance Industries No:59 Institute Chen Lin Huang Qiwei
Abstract:A synthetic analysis to a fractured motorbike frame in service has been made and indicated that much free-cementite precipitated at grain boundaries as network results in failure. Free-cementite preecipitated at grain boundaries induces inter-microcrack found in the workpiece after cold forming. Final fatigue failure is due to inter-microcrack prepagation by external force.
Keywords:Fatigue Failure Motorbike Free-cementite  
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